Wonderful. We lose over $100 billion per year because of these criminal invaders.

The cost of harboring illegal immigrants in the United States is a staggering $113 billion a year — an average of $1,117 for every “native-headed” household in America — according to a study conducted by the Federation for American Immigration Reform (FAIR).

The study, a copy of which was provided to FoxNews.com, “is the first and most detailed look at the costs of illegal immigration ever done,” says Bob Dane, director of communications at FAIR, a conservative organization that seeks to end almost all immigration to the U.S.

FAIR’s opponents in the bitter immigration debate describe the organization as "extremist," though it is regularly called upon to testify before Congress.